4.0 Mechanical Redesign
|
|
- Ira Bailey
- 5 years ago
- Views:
Transcription
1 4.0 Mechanical Redesign As my depth area of research, I have performed a detailed analysis of the existing air handling units and the existing conditions of the FIT Science Lab. After one semester of breaking down the building piece by piece (Fall 2004 AE 481W), I chose to conduct my thesis research on the addition of desiccant technology. A desiccant wheel is used to remove moisture from the air. As shown in the desiccant diagram (Figure 4.1), supply air (process inlet) passes through the desiccant wheel. On the desiccant wheel is a Figure 4.1: Desiccant Wheel Diagram special desiccant coating with a rating for the size of the openings in the wheel. The wheel is to act as a sieve for the moisture. Typical opening sizes range from 3 4 angstroms. After leaving the wheel, the supply air continues to provide air to the space (process outlet). In the return or exhaust duct, the air returning to the unit or leaving the building passed through a heat source (reaction inlet to reaction heat source). This warmed air then passes back through the desiccant wheel, evaporating the moisture off of the wheel and then continuing to the ambient air if it is exhaust or to the air handling unit if it is return air (reaction outlet). At first glance, the state of the FIT Lab and its air system is perfect. Designed by TLC Engineering for Architecture in Cocoa, Florida, the standards and rules of thumb were Olin Science Laboratory Pastor 18
2 followed to a tee. However, with the climate of a coastal city in Florida, humidity can pose as a huge problem to those who inhabit the area. Along with the stickiness you feel due to humidity comes water vapor which has the ability to produce mold and mildew on items throughout the building system. Ductwork insulation can grow mold on it and when the air is passing through to classrooms and laboratories, the air particles carry those spores with them, causing sick building syndrome. I have always been interested in Desiccant Technology although it is not typically seen in normal building applications. It is known that most people do not choose desiccant wheels for their mechanical system because it is more costly for the equipment and perhaps in the long run for maintenance. As will be shown through my research of this depth area, the cost of the air handler and wheel will be lower and the energy savings is enormous. Another issue that seems to arise about desiccant wheels in laboratory applications is the fact that cross contamination could occur and harmful gases can leak through the exhaust stream back into the supply air stream. This also will be proven false for my application to the Olin Lab, therefore proving the addition of the wheels to be beneficial to the. 4.1 Introduction of Desiccant Wheels to All the Air Handling Units My first task was to find a desiccant wheel that would be capable to fit into my existing air handling units. Since I have eight M Series Trane Air Handling Units, my first option was to look at their manufacturing catalogs to see if a wheel was available for purchase or if it was even an option for the Modular Climate Changers (MCC). Olin Science Laboratory Pastor 19
3 After a brief chat with a Trane representative, it was determined that they do not offer that type of product for their MCC units. He did, however, lead me to SEMCO, manufacturer of desiccant wheels and the Pinnacle Unit with a wheel built into it. Due to the fact that the existing units in the FIT Olin Lab are brand new, I decided that I would not replace the whole unit, but just look for a desiccant wheel with casing to add into the 8 MCC units. SEMCO offers a packaged energy recovery system that has a desiccant wheel in casing with optional heating and cooling coils. The technical guide on SEMCO s website, provided a detailed, step-by-step way to calculate the size of the Packaged Energy Recovery System (Figure 4.2) that I would need for each of the individual MCC units. Figure 4.2: SEMCO Packaged Energy Recovery System Along with a calculation to size the desiccant wheel, SEMCO offered a way to calculate the size of the heating and cooling coil that you would need to produce the air temperature to remove the moisture from the air. This was important to me because I theorized that adding a Figure 4.3: SEMCO EP Series, No Coils desiccant wheel would lower the load on the heating and cooling coils and therefore, downsize them. This would produce a huge savings on first cost and on energy. Olin Science Laboratory Pastor 20
4 Since the Trane Units were already equipped with cooling and reheat coils, I chose to use the described selection process from SEMCO and apply it to the Trane coils. I then would double check my answers based on Trane s selection standards for cooling and heating coils. Also, since the Trane Units were equipped with coils, I was able to select the EP Series of the Energy Recovery System because it offered the most flexibility and lowest cost. Figure 4.3 shows the diagram for the SEMCO EP Series without coils. After selecting the size of the Energy Recovery System that I would need for each air handler, the problem arose as to how I was going to insert these into the existing Trane Units. Compatibility was not a problem; a Trane representative sent me to the SEMCO site for the desiccant wheels. Since the Modular Climate Changer Units are built up air handlers, each section is attached to each other with nuts and bolts. The build up of my specific units is as follows: Fan Mixing Box (FMB) Cartridge Filter (CF) Cooling Coil (CC) Small Access (SAC) Reheat Coil (RHC) Fan (FAN) Since the desiccant wheel requires both cooling and heating coils for proper moisture removal, I decided to split the system between the cartridge filter and the cooling coil. This would allow me to insert the EP Series Energy Recovery System and allow for the heating and cooling coils to be used. Figure 4.4a and 4.4b are typical air handling unit as they currently existing in the FIT Olin Lab. The room shown in 4.4a is the First Floor Mechanical Room on the left side of the building, Room 134. Figure 4.4b is the second mechanical room on the First Floor, Room 116. Olin Science Laboratory Pastor 21
5 Figure 4.4a: First Floor Mechanical Room 134 Figure 4.4b: First Floor Mechanical Room 116 As you can clearly see, the spaces allotted for the mechanical rooms are big enough to house the existing equipment only. Therefore, upon insertion of the Desiccant System into the existing Air Handling Units, I came across a space problem. The Energy Recovery System package did not fit in the room. Even with the downsizing of the cooling and heating coils, the space cleared up by the removal of a few rows of coils did not equate to the space I would need for the ER Package. This problem could be resolved by moving the exterior wall out by several feet. The extension of the wall would allow for the exterior door to be moved and the Desiccant Wheel and necessary equipment to be placed in without problem. Appendix D contains all of my detailed excel spreadsheets for my process of selecting the desiccant wheels for each of the Trane MCCs. As can be seen in Appendix E, a total of tons of cooling can be saved by adding a desiccant wheel in the form of the SEMCO EP Series Energy Recovery System Unit. As for cost, a total of $166, (based on $400/ton of cooling) can be saved on coil load alone. This reduction will be found in the first cost. Olin Science Laboratory Pastor 22
6 4.2 Construction and Structural Issues Since the FIT Olin Lab is currently in construction and almost 100% complete, a renovation would need to be done for the mechanical rooms. The sizes of the desiccant wheel packages that are to be inserted into the mechanical rooms range from to This posed as a problem because there was no room in the existing space to put in these units. Along with the lost space from the insertion of the units comes the addition of several thousand pounds. For this reason, I would need to look at the structural system of the building and the first cost associated with a renovation. I had not chosen to do structural or construction management as breadth options; however, since these issues needed to be addressed, I have touched upon them briefly in this section. The first floor mechanical rooms are on the back corners of the building, Room 134 on the back left of the building and Room 116 on the back right of the building. The extension of the second mechanical room wall, Room 116 (Figure 4.4b), would pose no issue because there is enough space on the exterior of the building for the exterior wall to be moved. This concurrently would then allow the mechanical room above it on the second and third floors (Rooms 214 and 319) to be extended too. The length of the desiccant wheel packages that need to be inserted can be found in Figure 4.5 below. As you can see, the longest unit of the three stacked mechanical rooms would be Therefore, for safety purposes and for margins of error, I would ask that the exterior wall for Mechanical Rooms 116, 214 and 319 be extended Olin Science Laboratory Pastor 23
7 Figure 4.5: Length of Desiccant Packaged Units For Mechanical Room 249, which lies in the middle of the very back of the FIT Olin Lab, an extension of the exterior wall would need to be completed by approximately My real problem lies in the mechanical rooms that are on the bottom left corner of the FIT Lab. As you can see from the site plan in Figure 4.6, the Chiller Building that supplies the chilled water to the air handling units in the Lab Building lies only 16 away from that exterior wall. Mechanical Room 134 holds AHU 1 1 and AHU 1 2. The minimum amount of space that the exterior wall would need to move out would be This could not Figure 4.6: Site Plan Showing Mechanical Room in relation to Chiller Building happen because of the Chiller Building. Since the first floor mechanical room could not be moved, the two other mechanical rooms stacked above it, Rooms 230 and 344, would not be able to provide the necessary room. Another alternative setup would need to be devised so that the desiccant systems can fit on that half of the building. Olin Science Laboratory Pastor 24
8 The only costs associated with the extension of a wall would be the first cost of materials, demolition, removal of materials from the site and labor. Since these are only first costs, the payback associated with these compared to the amount of energy cost savings predicted as above ($166,787.00) would be minimal. 4.3 Ductwork Layout and Changes Due to the fact that I have not changed the sizes of any of the laboratory or classroom spaces, the amount of supply air that is provided by the air handling units would not change. My fan size and the amount of air supplied by it would not be affected by the addition of a desiccant wheel. Because I would be breaking apart the existing unit and adding the ER System into it, some transition ductwork would be necessary for connection of the two pieces of equipment. The amount of ductwork needed was very minimal and would not have an adverse affect on the cost of the building s mechanical system. 4.4 VOC Sensors and Cross Contamination As with any laboratory, issues will arise with the amount of chemical fumes that are being released by the building and the equipment inside of it. 25 of the 35 laboratory spaces are equipped with fume hoods. These fume hoods, used for chemical and physical science lab tests, are controlled by Phoenix Valves that modulate the amount of exhaust needed based on position of the fume hood s sash. When a sash is in use, a scientist typically has the sash in the fully opened or 80% open position. The control valve will read this positioning. The valve then varies the amount of exhaust needed. As a room becomes unoccupied, it is hoped that the scientists would fully close the sash Olin Science Laboratory Pastor 25
9 or close it to a 20% open position. The process of closing or partially closing the fume hoods makes for a huge energy savings on the FIT Olin Lab and helps to keep the exhaust gases from leaking back into the space. With the addition of a desiccant system, the exhaust or return air line must be used so that a reheating process can occur and the moisture collected on the wheel by the supply air can be evaporated. If the exhaust line is contaminated with chemical fumes, this can cause a potential cross contamination problem. Cross contamination is the leaking of harmful chemical gases into the supply air stream that is used to condition occupied spaces. There are many pieces of literature regarding the issues of cross contamination and desiccant systems with the use of exhaust from a laboratory space. However, all the literature does not choose one side or the other. It is all dependent on the application and the specific building type. A cross contamination issue will only occur if the equipment installed is put in improperly. For this reason, I have paid close attention to how my desiccant system was set up. Using many resources, including the expertise of one particular engineer at Hammel, Green and Abrahamson (HGA), I learned that there are three or four ways for cross contamination to occur, each of which must be individually addressed. The first way for cross contamination to occur is for exhaust air to leak into the supply air by way of the seals in the wheel. The leakage problem, which occurs at the perimeter of the wheel as it rotates, can be solved by controlling the relative air pressures such that the air leaks in the opposite way you are concerned. For example, Olin Science Laboratory Pastor 26
10 in this application, I would cause the supply air to leak into the exhaust air by making the pressure greater on the exhaust side. Another way for cross contamination to occur is for chemicals to stick to the wheel on the exhaust side and get thrown off into the supply air side as it rotates around. This will not happen because of the purge section where the air blows backwards across the wheel as it transitions between the dirty and clean side. Most of the harmful particles will get purged off. SEMCO guarantees that no more than % will be stuck on the wheel. One other way for cross contamination to occur is for the bad chemicals to get absorbed into the desiccant and then release on the other side. Most of the chemicals used in laboratories have a large chemical structure and are not an issue; they will stay in the exhaust stream and not get stuck in the desiccant. I have solved this problem by choosing a wheel that has a desiccant coating with only 3 angstrom sized openings. The chemicals physically do not fit in these size openings. There are times when other chemicals with smaller structures will be used and these structures will fit into the 3 angstrom sized openings. Although the list of chemicals is much smaller, radon and ammonia are included on it. These will pass through very easily. However, if you look at the system as a whole, with all the exhaust streams coming together, with the chemical needing to pass through a fume hood and with all the ductwork that the chemical will actually be going through, the exhaust air stream is very safe. SEMCO can guarantee only 0.005% crossover. The system can be tested every five years to make sure it is still within that range. Olin Science Laboratory Pastor 27
11 Finally, regarding corrosion, it was found that the dilution level of laboratory exhaust is so great that the exhaust air stream is relatively harmless. 4.5 Conclusions of Mechanical Depth My final conclusions for my mechanical depth work is that the addition of a desiccant wheel into the 8 existing Modular Climate Changers is a cost saving and energy saving decision tons of cooling, or $166,787.00, will be saved on this addition. With space being an issue, renovations would need to be conducted as well as structural studies for the additional weight added to the building. Secondly, there will not need to be any ductwork sizing or layout changes because all of the work was done in the mechanical room. The size or usage of the rooms throughout the FIT Lab has not changed, therefore, not changing their air flow requirements. The slight alteration that I have made to the units requires a minimal amount of ductwork and would not be a huge factor in the overall cost. Lastly, the addition of a desiccant wheel to a laboratory application and the continuing debate on cross contamination is resolved by taking a few simple steps. The selection of my wheel was based on size of the desiccant coating, i.e. the size of the opening on the wheel. A change in relative air pressure to cause the supply air to leak into the exhaust stream and not vice versa will prevent leakage into the supply air stream. The purge section of the wheel prevents the dirty side of the desiccant wheel to become clean before rotating to the supply air side. Olin Science Laboratory Pastor 28
F.W. Olin Physical Science Laboratory
Mechanical Systems Existing Conditions Evaluation Presented on Page 1 of 16 Table of Contents Executive Summary Depth p.3 Executive Summary Breadth p.4 Introduction & Background p.5 Alternatives p.7 Breadth
More informationChallenges and Methods of Estimating a Conceptual HVAC Design
Challenges and Methods of Estimating a Conceptual HVAC Design ABSTRACT In any conceptual HVAC design, estimators are faced with the challenge of trying to capture all of the pieces that complete a system.
More informationNational Institutes of Health Building 37 Modernization Bethesda, Maryland MECHANICAL DEPTH EXISTING MECHANICAL SYSTEM
MECHANICAL DEPTH EXISTING MECHANICAL SYSTEM The need to maintain occupancy during the renovation and the strict NIH Design Guidelines were the main driving forces behind the design. The mechanical engineering
More informationEP SERIES PACKAGED ENERGY RECOVERY SYSTEM ENERGY EFFICIENT AIR COMFORT
ENERGY EFFICIENT AIR COMFORT EP SERIES PACKAGED ENERGY RECOVERY SYSTEM Certified total energy recovery performance (sensible and latent) up to 90% efficient. Double-wall panel construction eliminates exposed
More informationMechanical System Redesign. Dedicated Outdoor Air System. Design Criteria
Mechanical System Redesign Dedicated Outdoor Air System Design Criteria The outdoor air conditions used were for Philadelphia, Pennsylvania IAP at a 0.4% occurrence. The supply air conditions were developed
More informationEarthWise System Seminar
EarthWise System Seminar Tim Gasper, P.E. Solutions Engineer Brady-Trane Services, Inc. EarthWise Systems? Energy Efficiency Emissions Buildings use 39% of the Primary Energy Consumed in the United States
More informationTrane Performance Climate Changer Air Handlers. An air handler for every need.
Trane Performance Climate Changer Air Handlers An air handler for every need. Trane Performance Climate Changer air handlers: designed to optimize your HVAC system. Trane Performance Climate Changer air
More informationBenefits Offered by Passive Dehumidification Wheel Speed Control
Benefits Offered by Passive Dehumidification Wheel Speed Control White paper By John Fischer Benefits Offered by Passive Dehumidification Wheel Speed Control The most significant advantage of the Pinnacle
More informationExisting Mechanical System Operation
majority of the air handlers. There are louvers along the north side of the building that allow for outdoor air to come in and feed the air handlers. On levels 4-8 the research laboratories are variable
More informationSelected Laboratory Energy Efficiency Measures
Selected Laboratory Energy Efficiency Measures These are some of the most effective energy efficiency measures for laboratories 1. Reduce (optimize) air changes per hour in lab space 2. Design to the proper
More informationRedesign of Bennett Hall HVAC System
MEE 488 April 18, 2006 Redesign of Bennett Hall HVAC System Greg Andreasen Michael Chicoine Florent Hohxa Jason Jacobe Mechanical Engineering, University of Maine, Orono ME 04473, USA ABSTRACT Our task
More informationTechnical Assignment 3
0 David H. Koch Institute for Integrative Cancer Research Senior Capstone Mechanical Option Technical Assignment 3 Mechanical Systems and Existing Conditions Report David H. Koch Institute for Integrative
More informationCustom Performance Climate Changer air handlers. Expertly designed and built to meet your specific requirements
Custom Performance Climate Changer air handlers Expertly designed and built to meet your specific requirements Experience and expertise to meet any custom air-handling requirement Trane Performance Climate
More informationFume Hood Safety TYPES OF FUME HOODS
Fume Hood Safety Fume hoods exhaust toxic, flammable, noxious, or hazardous fumes and vapors by capturing, diluting, and removing these materials. Fume hoods also provide physical protection against fire,
More informationMechanical Systems Thesis Proposal: Calvert Memorial Hospital Prince Frederick, MD Holly Mawritz
: Holly Mawritz Senior Thesis Project Proposal Penn State University Department of Architectural Engineering Mechanical Emphasis Faculty Consultant: Dr. Jim Freihaut 12-10-04 Table of Contents: Executive
More informationCase Study: Furman University Charles H. Townes Center for Science. Michael K. Mantai, PE, CCP President System WorCx
Case Study: Furman University Charles H. Townes Center for Science Michael K. Mantai, PE, CCP President System WorCx AIA Quality Assurance Learning Objectives 1. Case study example of Chilled Beam technology
More informationDIVISION 15 MECHANICAL
DIVISION 15 MECHANICAL A. GENERAL DESIGN CONDITIONS 1. Design occupied spaces to maintain 72 F and a space dew point temperature not to exceed 55 F. 2. Design classroom and office space buildings with
More informationRaised Access Floor - (AE Breadth Area)
Raised Access Floor - (AE Breadth Area) Currently, the Plaza has a raised access flooring system on both the 7 th and 8 th floors. The 8 th floor is designed with an independent HVAC system utilizing an
More informationTrane Performance Climate Changer Air Handlers. An air handler for every need.
Trane Performance Climate Changer Air Handlers An air handler for every need. Trane Performance Climate Changer air handlers: The most comprehensive air-handler portfolio in the industry. The portfolio
More informationMechanical Technical Report 1. ASHRAE Standard 62.1 Ventilation Compliance Evaluation
Mechanical Technical Report 1 Standard 62.1 Ventilation Compliance Evaluation Lutheran Theological Seminary at Philadelphia The New Learning Center Prepared For: William P. Bahnfleth, Ph.D., P.E. Department
More informationPINNACLE SERIES DEDICATED OUTDOOR AIR SYSTEM ENERGY EFFICIENT DEHUMIDIFICATION
ENERGY EFFICIENT DEHUMIDIFICATION PINNACLE SERIES DEDICATED OUTDOOR AIR SYSTEM Provides a very high degree of latent cooling using only a minimal amount of conventional cooling input Substantial energy
More informationASHRAE Region VI CRC Track III: Session 3 Ventilation Energy Recovery. Steven T. Taylor, PE Principal Taylor Engineering
ASHRAE Region VI CRC Track III: Session 3 Ventilation Energy Recovery Steven T. Taylor, PE Principal Taylor Engineering This program is registered with the AIA/CES for continuing professional education.
More informationSelection of air conditioning systems
Selection of air conditioning systems Prof. M. Ramgopal Department of Mechanical Engineering IIT Kharagpur Objectives 1. List the criteria used in the selection of air conditioning systems 2. List typical
More informationDEHUMIDIFICATION: Ice Arena Application & Product Guide. Design, construct and operate to control indoor humidity in ice rinks
DEHUMIDIFICATION: Ice Arena Application & Product Guide Design, construct and operate to control indoor humidity in ice rinks Munters is the world leader in dehumidification Munters is the largest manufacturer
More informationTrane CDQ Desiccant Dehumidification
Engineering Bulletin Trane CDQ Desiccant Dehumidification September 2004 CLCH-PRB020-EN Preface This engineering bulletin presents the Trane CDQ desiccant dehumidification system. It explains the features
More informationFor an administrative fee of $9.97, you can get an un-locked, printable version of this book.
The System Evaluation Manual and Chiller Evaluation Manual have been revised and combined into this new book; the Air Conditioning and Refrigeration System Evaluation Guide. For an administrative fee of
More informationSubmitted to. Texas A&M University-Corpus Christi The Texas A&M University System. Submitted by. Yeqiao Zhu Dan Turner David Claridge
ESL-TR-99/12-04 Report of Energy Efficiency Study and Metering/Utilities Profile for Electricity Deregulation at the Texas A&M University-Corpus Christi (TAMU-CC) Corpus Christi, Texas Submitted to Texas
More informationVentilation in Humid Climates: Data from Field Experiments
Gaylord Texan Resort & Convention Center October 20-23, 2004 - Dallas, Texas Ventilation in Humid Climates: Data from Field Experiments Neil Moyer FSEC Yearly Housing Starts Past 3 Years Source: NAHB x
More informationEU Air Handling Units with SEMCO EXCLU-SIEVE
EU Air Handling Units with SEMCO EXCLU-SIEVE The acquisition of US based Semco has given us the opportunity to include a new range of rotary heat exchangers in our EU air handling unit range. Hygienic
More informationVentilation and Humidity Control in Army Barracks Using DOAS for Better Indoor Air Quality and Energy Conservation
Ventilation and Humidity Control in Army Barracks Using DOAS for Better Indoor Air Quality and Energy Conservation Author:John Vavrin, PE Presenter: Dale Herron US Army Corps of Engineers Engineer Research
More informationEconomical, Flexible, Advanced Performance. Ventilation and Dehumidification for Healthy IAQ
Economical, Flexible, Advanced Performance Ventilation and Dehumidification for Healthy IAQ CompleVent the Energy Conserving, Cost-Efficient Way to Meet ASHRAE Standards Today s focus on indoor air quality
More informationHVAC Efficiency In Healthcare. Presenter Mr. Nate Lincoln
HVAC Efficiency In Healthcare Presenter Mr. Nate Lincoln nlincoln@greenairenv.com 1.800.789.3734 Learning Objectives Control Systems Annuals; Chillers, Cooling Towers, Air Handler Units Infection Control
More informationThe School District of Philadelphia Administration Headquarters Shell and Core Renovations 440 North Broad Street Philadelphia, PA
2.0 Depth Work - Alternative Mechanical Designs 2.1 Objectives The goal of designing alternative systems is to compare energy usage, system costs, emissions, lost rentable space, and constructability.
More informationHeat Pumps M2 SERIES. Modular Self-Contained Unit Water-Source Heat Pumps (3-70 tons) Features:
Heat Pumps M2 SERIES Modular Self-Contained Unit Water-Source Heat Pumps (3-70 tons) Features: Water-source and geothermal heat pump self-contained units with capacities from 3-70 tons 10%-100% variable
More informationSenior Thesis Centre Community Hospital East Wing Addition - Proposal Keith Beidel Mechanical Option 12/05/02 1
Table of Contents Page Number(s) Executive Summary 2 Project Background 3 Proposed Depth Alternatives 4 Proposed Depth Redesign 5-7 Justification of Proposed Depth Redesign 8 Proposed Breath Redesign 9
More informationDaikin Blueprint: Delivering Hot Water with a Chiller
Daikin Blueprint: Delivering Hot Water with a Chiller Analyzing the design of heat recovery on air-cooled chillers and the effect it has on building energy consumption By Paul Crisman Daikin Chiller Applications
More informationHigh Efficiency Dehumidification System (HEDS)
Advanced HVAC Technologies High Efficiency Dehumidification System (HEDS) Scot Duncan, P.E., Jim Meacham, P.E. Conservant Systems, Inc. August 16, 2017 Tampa Convention Center Tampa, Florida Why Was HEDS
More informationLiquid Desiccant Technology Delivers Energy Cost Reductions and Indoor Air Quality Improvements. White Paper
Liquid Desiccant Technology Delivers Energy Cost Reductions and Indoor Air Quality Improvements White Paper Abstract Cooling represents the third leading use of energy and source of carbon emissions in
More informationUNIVERSITY OF MISSOURI Heating Ventilating and Air-Conditioning (HVAC) 2016 Q1
GENERAL: This section provides general standards for overall sizing and design of Heating, Ventilating, and Air Conditioning (HVAC) systems. Other sections contain specific standards for each system per
More informationB. Use UT Austin specifications and equipment schedule format for HVAC equipment where available.
PART 1: GENERAL 1.01 General Requirements A. This standard is intended to provide useful information to the Professional Service Provider (PSP) to establish a basis of design. The responsibility of the
More informationHeat pump and energy recovery systems
SBS5311 HVACR II http://ibse.hk/sbs5311/ Heat pump and energy recovery systems Ir. Dr. Sam C. M. Hui Faculty of Science and Technology E-mail: cmhui@vtc.edu.hk Oct 2017 Contents Basic concepts Air-to-air
More information2 Existing Mechanical System
2 Existing Mechanical System 2.1 Design Objectives and Requirements The Gossett Field House project consists of a 25,000 sqft addition and a 40,000 sqft renovation of the existing facility for the University
More informationHow to Take Basic Readings to Show Energy Efficiency
How to Take Basic Readings to Show Energy Efficiency NADCA Energy White Paper Readings & Copyright 2017 NADCA, All Rights Reserved No part of this publication may be reproduced or distributed by any means,
More information21. Plumbing fixture mixing valves, PRV, electronic faucets and flush valve(excluding batteries)optional Cost proposal to include these device
DIVISION 23800 APPENDIX A ASHTABULA CAMPUS: 1. Air Handling Equipment And Appurtenances 2. Exhaust Fans 3. Fume Hood Exhaust Fans 4. Fume Hood monitoring devices and annual certification of face velocity
More information7. MECHANICAL SYSTEM DESIGN
7. MECHANICAL SYSTEM DESIGN The second primary topic of this thesis is to investigate the application of a dedicated outdoor air system (DOAS) to the SLCC. The stated goals for this thesis of improved
More informationComputing Services Center
Continuous Commissioning Report for the Computing Services Center Building #516 Submitted to: Utilities Energy Office Physical Plant Department Texas A&M University Prepared by: Energy Systems Laboratory
More informationCHAPTER 4. HVAC DELIVERY SYSTEMS
CHAPTER 4. HVAC DELIVERY SYSTEMS 4.1 Introduction 4.2 Centralized System versus Individual System 4.3 Heat Transfer Fluids 4.4 CAV versus VAV Systems 4.5 Common Systems for Heating and Cooling 4.6 Economizer
More informationSMART ERV Energy Recovery Ventilator. Build It Tight / Ventilate It Right!
SMART ERV Energy Recovery Ventilator SMART air & energy solutions SMART products include Indoor Air Quality (IAQ) and Energy efficiency products Primarily targeting the residential market Products include:
More informationArchitectural Engineering Senior Thesis Mechanical System Redesign
Saint Joseph Medical Center Architectural Engineering Senior Thesis Mechanical System Redesign Chris Nicolais Building Description Existing Mechanical System Proposed Redesign Alternative Option Emergency
More informationAIR-CONDITIONING SYSTEMS AND APPLICATIONS. Abdullah Nuhait Ph D. King Saud University
AIR-CONDITIONING SYSTEMS AND APPLICATIONS Abdullah Nuhait Ph D. King Saud University AIR-CONDITIONING SYSTEMS Earliest air conditioning system used only for heating (winter) Provided heated air for comfort
More informationDISTRIBUTION SYSTEMS. Water Piping and Pumps
DISTRIBUTION SYSTEMS Water Piping and Pumps Technical Development Programs (TDP) are modules of technical training on HVAC theory, system design, equipment selection and application topics. They are targeted
More informationCivil Engineering Building
Continuous Commissioning Report For the Civil Engineering Building Building 492 Submitted to: Utilities Energy Office Physical Plant Department Texas A&M University Prepared by: Energy Systems Laboratory
More informationMadeira City Schools Madeira, Ohio. HVAC Assessment. December 2011 (Revised February 2012)
Madeira City Schools Madeira, Ohio HVAC Assessment December 2011 (Revised February 2012) Prepared by: CMTA Engineering Consultants, Inc. 10411 Meeting Street Prospect, KY 40059 www.cmtaegrs.com (502) 326-3085
More informationLARGE CAPACITY HEATERS
250 1,000 Capacities 7.5-12,850 150,000 CFM 200 MBH 250-7,500 MBH - - Tons APPLICATIONS Heating/Cooling/Makeup Air WAREHOUSES / FACTORIES SCHOOLS / UNIVERSITIES COMMERCIAL / RETAIL INDUSTRIAL GYMNASIUMS
More informationCALIFORNIA MECHANICAL CODE OVERVIEW OF 2016 UPDATES CHANGES AND RAMIFICATIONS
CALIFORNIA MECHANICAL CODE OVERVIEW OF 2016 UPDATES CHANGES AND RAMIFICATIONS Presented to: Presented by: Sargon Ishaya, PE www.pragmaticprofessionalengineers.com Introduction Today s Agenda Overview Review
More informationDescription of All Alternatives Considered-
Description of All Alternatives Considered- Energy efficiency is an area where the Tubman design can be improved. The design heating load is 1807.8 MBH and the design cooling load is 1702.2 MBH or 142
More informationActive Dry Air Venting for Water Contamination Control
. PO Box 1299 Minneapolis, MN 5544 USA Industrial Hydraulics 1-8-846-1846 grphydfilters@donaldson.com Active Dry Air Venting for Contamination Control While required for biological life, water can be extremely
More informationA Technical Introduction to Cool Thermal Energy Storage Commercial Applications
A Technical Introduction to Cool Thermal Energy Storage Commercial Applications Cool Thermal Energy Storage is a new application of an old idea that can cut air conditioning energy costs in half while
More informationMechanical Redesign, Proposal Elizabeth C. Krauss Mechanical Option September 18, 2013
Mechanical Redesign, Proposal Elizabeth C. Mechanical Option September 18, 2013 State Institute of Rehabilitation T e c h n i c a l R e p o r t I 1 Mechanical Redesign, Proposal... 0 Executive Summary...
More informationChilled beam technology overview John Woollett 1, Jonas Åkesson 2 Swegon AB 1,2
Chilled beam technology overview John Woollett 1, Jonas Åkesson 2 Swegon AB 1,2 john.woollett@swegon.se, jonas.akesson@swegon.se SUMMARY The main focus of the paper will be on active beam technology regarding
More informationINTRODUCTION HVAC BASICS AND HVAC SYSTEM EFFICIENCY IMPROVEMENT SECTION O 4/19/2012
HVAC BASICS AND HVAC SYSTEM EFFICIENCY IMPROVEMENT SECTION O INTRODUCTION HVAC systems or Heating, Ventilating and Air-Conditioning systems control the environment for people and equipment in our facilities.
More informationCOMMERCIAL HVAC EQUIPMENT Coils: Direct Expansion, Chilled Water, and Heating
COMMERCIAL HVAC EQUIPMENT Coils: Direct Expansion, Chilled Water, and Heating Technical Development Program Technical Development Programs (TDP) are modules of technical training on HVAC theory, system
More informationFirstEnergy Program Overview
FirstEnergy Program Overview Builder incentives $400 per unit + $0.10/kWh in projected savings Eligibility Located in service area of a FirstEnergy Utility Certificate of Occupancy Dates: FirstEnergy Ohio
More informationTech to Tech May 07 HRV s & ERV s
Tech to Tech May 07 HRV s & ERV s Make daily deposits to your box of knowledge, soon it will have many reference cards. --Randal S. Ripley With the cost of energy going up all the time, home owners and
More informationApplication of the VRV Air-Conditioning System Heat Recovery Series in. Interior Zone and Analysis of its Energy Saving
Application of the VRV Air-Conditioning System Heat Recovery Series in Interior Zone and Analysis of its Energy Saving Qiang Zhang Deying Li Jiandong Zhang Master Student Professor Engineer Key Laboratory
More informationAPPLICATION, INSTALLATION, AND MAINTENANCE MANUAL CA2XRT, CA3XRT, CA4XRT
4510 Helgesen Drive, Madison, WI 53718 (608) 221-4499, (800) 627-4499, Fax: (608) 221-2824 support@renewaire.com www.renewaire.com APPLICATION, INSTALLATION, AND MAINTENANCE MANUAL CA2XRT, CA3XRT, CA4XRT
More informationRoofPak Applied Rooftop Systems
RoofPak Applied Rooftop Systems RoofPak Applied Rooftop Systems Design flexibility, energy efficiency, system performance and reliability make Daikin RoofPak applied rooftop systems the ideal solution
More informationAHU Air Handling Unit Fundamentals. j.ilangumaran
AHU Air Handling Unit Fundamentals j.ilangumaran Objectives Review primary components of an AHU Understand the basic progression and advantages of advanced AHU control Understand the basic control sequences
More informationDehumidifying with Dedicated Outdoor Air
Dehumidifying with Dedicated Outdoor Air System Configurations Figure 71. Configurations for dedicated outdoor-air systems A dedicated outdoor-air handler separately filters, cools, dehumidifies, heats,
More information4-Pipe VAV vs. Active Chilled Beams for Labs
Steven T. Taylor 4-Pipe VAV vs. Active Chilled Beams for Labs BY STEVEN T. TAYLOR, P.E., FELLOW ASHRAE Variable air volume (VAV) laboratory HVAC systems, including VAV fume hoods, are now standard practice
More informationDES CHAMPS PRODUCTS. Specializing in: -- Air-to-Air Energy Recovery -- Conditioning Outdoor Air -- Controlling IAQ -- Indirect Evaporative Cooling
DES CHAMPS PRODUCTS Specializing in: -- Air-to-Air Energy Recovery -- Conditioning Outdoor Air -- Controlling IAQ -- Indirect Evaporative Cooling DES CHAMPS PRODUCTS Packaged Heat Recovery Systems Micro-Z
More information9/18/2017. Nicholas Thornton, CEM. Systems: HVAC, Electrical, and Technology. Overview. Today s Goals Introductions HVAC Electrical Technology Q&A
Nicholas Thornton, CEM 1 Overview Today s Goals Introductions HVAC Electrical Technology Q&A 2 1 Today s Goals An overview, a crash course Maybe a few tangents (ASK QUESTIONS!) Show typical arrangements
More informationTemperature Distribution of Rotary Heat Recovery Units
Temperature Distribution of Rotary Heat Recovery Units Bjørn R. Sørensen, dr.ing. Narvik University College, P.O.Box 385, N-8505 Narvik, Norway Corresponding email: brs@hin.no SUMMARY This paper deals
More informationMystery of Sustainable Heat Exchange Material Heat Recovery Ventilator(HRV)
Mystery of Sustainable Heat Exchange Material Heat Recovery Ventilator(HRV) 1 Contents Why Heat Recovery Ventilator(HRV) is required Type of Heat Recovery Ventilator Feature of MITSUBISHI ELECTRIC Lossnay
More informationChristopher Kelly Technical Report Three
Christopher Kelly Technical Report Three Mechanical Systems and Existing Conditions Evaluation SALK HALL ADDITION The University of Pittsburgh, Pittsburgh Christopher Kelly, Mechanical Option Professor
More informationEnergy Recovery Ventilation
Published on Business Energy Advisor (https://oncor.bizenergyadvisor.com) Home > Energy Recovery Ventilation Energy Recovery Ventilation Proper ventilation is essential for maintaining good indoor-air
More informationLABORATORY DESIGN HANDBOOK
LABORATORY DESIGN HANDBOOK UNDERSTANDING, ACCELERATED LABORATORY DESIGN HANDBOOK TSI, TSI logo, are registered trademarks of TSI Incorporated. Copyright 2014 by TSI Incorporated This handbook is not intended
More informationQuality Products AHU Repair, Refurbishment and Replacement
Quality Products AHU Repair, Refurbishment and Replacement We are engineers specialising in the repair, refurbishment and replacement of ventilation systems. We have considerable experience in solving
More informationAIR HANDLERS. Central Station (CS3) Roof Mounted (RT) (Modular AL Frame AHU)
AIR HANDLERS Central Station (CS3) (Modular AL Frame AHU) Roof Mounted (RT) CONTENTS 1. CS3 Modular Aluminium Frame AHU : Unit Types 2. Casing Structure 3. Blowers and Drives 4. Coils 5. Options and Accessory
More informationSystems engineering Slide 1
Slide 1 Overview / Calculation energy flow control / emission distribution building energy use (conditioning boundary) storage generation balance boundary primary energy delivered energy (building boundary)
More informationAppendix A.4.1. Safe Fume Hood User Guide
Appendix A.4.1. Safe Fume Hood User Guide Fume hoods are devices designed for work with toxic or hazardous chemicals with the effect of safely capturing the harmful gases, vapors, and fumes generated and
More informationChilled Water system
Chilled Water system Introduction For large installations the Condenser, Evaporator, Compressor and Expansion device can be purchased as a package unit, known as a Chiller. The usual package consists of
More informationExhaust. a) For an arbitrary ambient temperature develop an expression for Q chiller in terms of M amb and M total.
1. State 2 75 o F Exhaust M amb T amb State 3 Room Q chiller State 1 60 o F M total A room at steady state has a supply air stream of cool air entering at 60 o F. The lights, office appliances and people
More informationHeat Recovery Units. Heat Recovery 1
Heat Recovery Units Heat Recovery 1 Heat Recovery Unit Why? A heat recovery unit (HRU) can help make mechanical ventilation more cost effective by reclaiming energy from exhaust airflows. HRUs use air-to-air
More informationVicot Air Conditioning Co., Ltd. CONTENT
CONTENT I. Introduction 2 II. Absorption Principle 3 III. GAX Absorption Cycle 3 IV. Major Component Description and Function 4 V. Features 4 VI. Performance curve 5 VII. Nomenclature 5 VIII. Technical
More informationCITY OF DANA POINT. COMMUNITY DEVELOPMENT, BUILDING AND SAFETY Golden Lantern, Suite 209 Dana Point, CA
CITY OF DANA POINT COMMUNITY DEVELOPMENT, BUILDING AND SAFETY 33282 Golden Lantern, Suite 209 Dana Point, CA 92629 949 248 3594 www.danapoint.org INDOOR AIR QUALITY B011 AIR 2013 CALIFORNIA CODES CODE
More informationWalkthrough Inspection Checklist
Walkthrough Inspection Checklist Name: School: Room or Area: Date Completed: Signature: Instructions 1. Read the IAQ Backgrounder and the Background Information for this checklist. 2. Keep the Background
More informationAppendix 13. Categories of Cooling and Heating systems
EcoShopping - Energy efficient & Cost competitive retrofitting solutions for Shopping buildings Co-funded by the European Commission within the 7 th Framework Programme. Grant Agreement no: 609180. 2013-09-01
More informationWhy should you opt for ENTHALPY. Wheels for your. AHUs. ERVs. (Energy Recovery Ventilators) (Air Handling Units) from
Why should you opt for ENTHALPY Wheels for your AHUs (Air Handling Units) & ERVs (Energy Recovery Ventilators) from Benefits of an ERV (Energy Recovery Ventilator) over a HRV (Heat Recovery Ventilator)
More informationVentilation System Description. September 8, 2000 HETA
September 8, 2000 HETA 99-0250 Harry Enoch, Ph.D. Director, Environmental Health and Safety University of Kentucky 252 East Maxwell Street Lexington, KY 40506-0314 Dear Dr. Enoch: On June 7, 1999, the
More informationHeat Pumps SB SERIES. Vertical Self-Contained Unit Water-Source Heat Pumps (3-18 tons) Features:
Heat Pumps SB SERIES Features: Vertical self-contained units with capacities from 3-18 tons ECM driven direct drive backward curved plenum supply fans for improved energy Double wall rigid polyurethane
More informationGARCIA GALUSKA DESOUSA Consulting Engineers
L#57295/Page 1/July 21, 2017 HVAC SYSTEMS NARRATIVE REPORT The following is the HVAC system narrative, which defines the scope of work and capacities of the HVAC system as well as the Basis of Design.
More informationBill McCullough. Director ERV Products. Dallas, TX
Bill McCullough Director ERV Products Dallas, TX TOPICS 1. ERV Definition & Benefit 2. Indoor Air Quality 3. Energy Efficiency 4. ERV Technology & Operation 5. Stand-Alone ERVs 6. Compact ERVs What is
More informationEnergy Recovery Ventilation Introduction
Energy Recovery Ventilation Introduction An emphasis on energy conservation resulted in tighter buildings with minimum amounts of fresh air being heated or cooled and brought into air-conditioned spaces.
More informationTHIS IS A DESIGN GUIDE NOT A SPECIFICATION. Montgomery County Public Schools Facilities Guide DIVISION 15 MECHANICAL
SECTION 15100 PART 1 GENERAL THIS IS A DESIGN GUIDE NOT A SPECIFICATION Montgomery County Public Schools Facilities Guide DIVISION 15 MECHANICAL HVAC SYSTEMS APPLICATIONS 1.1 SCOPE: The intent of this
More informationAir-Conditioning Buying Guide
Air-Conditioning Buying Guide Buying a new air-conditioning system is a big decision. This Air-Conditioning Buying Guide can help you make the right choice, save energy and money. Shop with confidence
More informationRetrocommissioning Findings Summary: Building X #1 Priority: Major Comfort/Control Problems
IMPORTANT NOTICE: This sample document is provided for instructional purposes only. CCC is not rendering advice concerning any commission project or practices. This document is neither approved nor intended
More informationSEMCO CHILLED BEAMS INDOOR AIR QUALITY AND ENERGY SAVINGS FANLESS FILTERLESS SPACE CONDITIONING
FANLESS FILTERLESS SPACE CONDITIONING SEMCO CHILLED BEAMS INDOOR AIR QUALITY AND ENERGY SAVINGS IQHC Active Chilled Beam An intelligently designed active chilled beam that has the highest industry cooling
More informationField Test of Combined Desiccant-Evaporator Cycle Providing Lower Dew Points and Enhanced Dehumidification
Field Test of Combined Desiccant-Evaporator Cycle Providing Lower Dew Points and Enhanced Dehumidification Charles J. Cromer, PhD, P.E.; Florida Solar Energy Center, 1679 Clearlake Road, Cocoa, FL, 321-638-14,
More informationPresentation Outline. Coppin State University Physical Education Complex Kaylee Damico Mechanical Option April 12 th, 2011
Project Team Proposed Redesign Mechanical Depth Electrical Breadth Construction Management Breadth Cost and Energy Savings Summary and Conclusion Coppin State University Physical Education Complex Kaylee
More information